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olasank [31]
4 years ago
13

A researcher was studying mutations in bacteria found a certain bacteria had

Biology
2 answers:
AVprozaik [17]4 years ago
8 0
Evolution of organisms
Yanka [14]4 years ago
6 0

Answer:

Evolution Genetics

Explanation:

Genetic evolution of living beings is the process of the disappearance or emergence of new species due to genetic variability. This process is very slow and can take up to thousands of years so it is difficult to keep up with the evolution process.

The research shown in the question above is an example of genetic evolution research. This is because antibiotics are substances that have the power to kill any kind of bacteria, however some bacteria evolve, new species of bacteria have emerged that have the ability to resist and survive the action of antibiotics.

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What is the general shape of the epithelial cells that are nearest the lumen in an empty urinary bladder?
OverLord2011 [107]

The general shape of the epithelial cells that are nearest to the lumen in an empty urinary bladder is in multiple cell layers which are considered to be a stratified tissue and the cells in it are shaped in terms of the organ’s distention. This type of epithelial cell is the transitional epithelium.

3 0
3 years ago
A version of a gene
Inga [223]

Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits.

4 0
3 years ago
In a tabular form state four differences between plants and animals​
valentina_108 [34]

Answer:

plants.

1.cannot move from.

one place to another.

2.most are green.

3.sense organ absent

animals

1.can move from one place to another

2.have different colours

3.sense organ present

6 0
3 years ago
Which soil cannot be rolled into balls or clumps
Bezzdna [24]

Your answer would be Sand.


If you go to the beach, and try making balls in your hand it's nearly impossible. If you pick up sand it will just fall through the crevice's in your hand, or a simple movement of your hand can make the sand fall. Sand simply can't be formed into a ball.


If you where to try making a ball of sand the outcome wouldn't be great. Even if you made the sand damp you still can't really make a ball of sand.

3 0
3 years ago
A forest has two groups of plants that appear to be very similar both phenotypically and genotypically. The major difference is
Andru [333]
<span>In order to know whether the plants are members of one population with great diversity or actually members of the same species we can attempt to find out whether they reproduce or not. That's one of the main aspects of two organisms of the same species - fertility.

We could start by setting up some kind of artificial environment where both plants would pollenise at the same time, or we could also collect the pollens from both plants and store it to use them in a different time of the year than that of their production. 

After having the pollens available from both plants we could fertilise a group of both plants with each other's pollens (the actual object of study), and also fertilise a group of both plants with their own pollens (so we can have a control for the quality of the pollens and the plants - in this group it is expected to have offspring, if there isn't we cannot take into account any other results).

After the fertilisation, we should now count the offspring. If there is offspring resulting from the crossed plants, they are probably of the same species. We could also compare these plants with the offspring of the normal crossing to check whether there were major differences (such as health issues, or offspring number) that would lead to conclude that still there wasn't compatibility. 

By creating a hybrid between this two groups, even if they are from the same species, we may have to take also into account that they may have different required conditions than their parent plants.

</span>The study should be repeated a few times or the number of plants involved should be large enough to be statistically relevant.
5 0
4 years ago
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